Forwarding questions

[Xavier Van Laethem]

Accordind to doc....

Forwarding

The forwarding facility can be used to create a large site-wide cache on a 
few servers, reducing traffic over links to external nameservers. It can also 
be used to allow queries by servers that do not have direct access to the 
Internet, but wish to look up exterior names anyway. Forwarding occurs only 
on those queries for which the server is not authoritative and does not have 
the answer in its cache.


Zone Types master

The server has a master copy of the data for the zone and will be able to 
provide authoritative answers for it.

zone domain_name [ ( in | hs | hesiod | chaos ) ] { 
  type master;
  file path_name;
  [ forward ( only | first ); ]
  [ forwarders { [ ip_addr ; [ ip_addr ; ... ] ] }; ]
  [ check-names ( warn | fail | ignore ); ]
  [ allow-update { address_match_list }; ]
  [ allow-query { address_match_list }; ]
  [ allow-transfer { address_match_list }; ]
  [ dialup yes_or_no; ]
  [ notify yes_or_no; ]
  [ also-notify { ip_addr; [ ip_addr; ... ] }; ]
  [ ixfr-base  path_name; ]
  [ pubkey number number number string; ]
};

First:
so... for zone of type master, the server is authoritative, and make no 
forward...
what is the purpose of forward and forwarders options in zone declarations ?

Second: how can i "add" RR (only for my own purpose ) in a domain without 
changing his server (i do not have control of this domain but need to solve 
few "Internal" names )...